EP 0974581 A4 20020102 - PROCESS FOR PREPARING EQUILIBRIUM PEROXY ACID AND PROCESS FOR PRODUCING LACTONE
Title (en)
PROCESS FOR PREPARING EQUILIBRIUM PEROXY ACID AND PROCESS FOR PRODUCING LACTONE
Title (de)
VERFAHREN ZUR HERSTELLUNG VON PEROXYSÄURE IM GLEICHGEWICHT UND VERFAHREN ZUR HERSTELLUNG VON LACTON
Title (fr)
PROCEDE DE PREPARATION DE PEROXYACIDE D'EQUILIBRE ET PROCEDE DE PRODUCTION DE LACTONE
Publication
Application
Priority
- JP 9804135 W 19980914
- JP 26935497 A 19970916
- JP 5435898 A 19980219
Abstract (en)
[origin: WO9914190A1] A process for preparing an equilibrium peroxy acid by the reaction of hydrogen peroxide with a carboxylic acid while removing the formed water in a reactive distillation device, the contents of the water and hydrogen peroxide in the acid being each 1.5 % by weight or less; and a process for producing a lactone by the reaction between the peroxy acid thus obtained and a cyclic ketone, which permits the selectivity of the lactone to be improved without lowering the activity of the ketone at an early stage of conversion.
IPC 1-7
C07C 409/24; C07C 407/00; C07D 313/04; C07C 409/26; C07C 409/00; C07D 315/00
IPC 8 full level
C07C 409/24 (2006.01); C07C 409/26 (2006.01)
CPC (source: EP)
C07C 407/00 (2013.01); C07C 407/003 (2013.01); C07C 409/24 (2013.01); C07C 409/26 (2013.01); C07D 315/00 (2013.01); Y02P 20/10 (2015.11)
Citation (search report)
- [X] EP 0454397 A1 19911030 - UBE INDUSTRIES [JP]
- See references of WO 9914190A1
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
WO 9914190 A1 19990325; EP 0974581 A1 20000126; EP 0974581 A4 20020102
DOCDB simple family (application)
JP 9804135 W 19980914; EP 98941863 A 19980914